package com.dou.you.che.web.controller.login;

import com.dou.you.che.web.controller.base.BaseAct;
import com.google.code.kaptcha.Constants;
import com.google.code.kaptcha.impl.DefaultKaptcha;
import com.dou.you.che.web.comm.utils.shiro.ShiroUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.IOException;

/**
 * 验证码
 * @Author 黄国刚【1058118328@qq.com】
 */
@Controller
public class VerificationCodeAct extends BaseAct {

    @Autowired
    private DefaultKaptcha producer;

    @RequestMapping("captcha.jpg")
    public void captcha(HttpServletResponse response) throws ServletException, IOException {
        response.setHeader("Cache-Control", "no-store, no-cache");
        response.setContentType("image/jpeg");

        //生成文字验证码
        String text = producer.createText();
        //生成图片验证码
        BufferedImage image = producer.createImage(text);
        //保存到shiro session
        ShiroUtils.setSessionAttribute(Constants.KAPTCHA_SESSION_KEY, text);

        ServletOutputStream out = response.getOutputStream();
        ImageIO.write(image, "jpg", out);
    }

}
